Popup Calculator in Windows Forms Calculator

4 Feb 20252 minutes to read

The PopupCalculator class can be used to display a popup Calculator control. This class can be created programmatically.

The PopupCalculator control lets you embed a Calculator control object to a button for example. Drop the button onto the form and add the following code snippet.

C#

private Syncfusion.Windows.Forms.Tools.PopupCalculator popupCalculator1;



private void buttonAdv1_Click(object sender, EventArgs e)

{

    // Create the Popup Calculator.

    popupCalculator1 = new Syncfusion.Windows.Forms.Tools.PopupCalculator();



    // The control that will act as the Popup's parent.

    this.popupCalculator1.ParentControl = this.button1;



    // Set the alignment.

    this.popupCalculator1.PopupCalculatorAlignment = Syncfusion.Windows.Forms.Tools.CalculatorPopupAlignment.Right;



    // Display the Calculator control.

    this.popupCalculator1.DisplayCalculator(Point.Empty);



    //Sets the size of the calculator

    this.popupCalculator1.Size = this.calculatorControl1.Size;

}

VBNET

Private popupCalculator1 As Syncfusion.Windows.Forms.Tools.PopupCalculator



Private Sub buttonAdv1_Click(ByVal sender As Object, ByVal e As EventArgs)

    ' Create the Popup Calculator. 

    popupCalculator1 = New Syncfusion.Windows.Forms.Tools.PopupCalculator()



    ' The control that will act as the Popup's parent. 

    Me.popupCalculator1.ParentControl = Me.button1



    ' Set the alignment. 

    Me.popupCalculator1.PopupCalculatorAlignment = Syncfusion.Windows.Forms.Tools.CalculatorPopupAlignment.Right



    ' Display the Calculator control. 

    Me.popupCalculator1.DisplayCalculator(Point.Empty)



    'Sets the size of the calculator 

    Me.popupCalculator1.Size = Me.calculatorControl1.Size

End Sub